MIC94065YC6 データシートの表示（PDF） - Micrel

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MIC94065YC6

High Side Power Switches

Micrel 

MIC94064/5

High Side Power Switches

General Description

The MIC94064 and MIC94065 are high-side load

switches designed for operation between 1.7V to 5.5V.

The devices contain a low on-resistance P-channel

MOSFET that supports over 2A of continuous current.

The MIC94064/5 provides a slew rate controlled Soft-

Start turn-on of 115µs (typical) to prevent in-rush current

from glitching supply rails.

The MIC94065 features an active load discharge circuit

which insures capacitive loads retain no charge when

the main switch is in an OFF state.

An active pull-down on the enable input keeps

MIC94064/5 in a default OFF state until the EN pin is

pulled to a high level. Built-in level shift circuitry allows

low voltage logic signals to switch higher supply

voltages, or vice versa; high level logic signals can

control low level voltages.

The MIC94064/5’s operating voltage range makes them

suitable for 1-cell Lithium ion and 2- to 3-cell

NiMH/NiCad/Alkaline powered systems, as well as all 5V

applications. Their low operating current of 2µA and low

shutdown current of <1µA maximize battery life.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Features

• 1.7V to 5.5V input voltage range

• 2A continuous operating current

• 77mΩ (typ) RDSON

• Built-in level shift for control logic; can be operated by

1.5V logic.

• Low 2µA quiescent current

• Soft-Start: 115µs

• Micro-power shutdown <1µA

• Load discharge circuit: MIC94065

• Space saving 1.2x1.6 mm Thin MLF® package

Applications

• Load switch in portable applications:

- Cellular phones

- PDAs

- MP3 players

- Digital Cameras

- Portable instrumentation

• Battery switch-over circuits

• Level translator

________________________________________________________________________________________________________

Typical Application

MIC94064

Load Switch Application

MIC94065

Load Switch with Capacitive Load Discharge

MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

January 2008

M9999-011608

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